copr: backend: fix Rawhide builds

Fedora Rawhide is now F33, and is signed by F33 keys.  We could move to
mock 2.0 and updated mock-core-configs, but there are several problems
we need to fix first:

- fix copr-rpmbuild to work with relative include()
- use config_opts[f"{pkg_manager}.conf"] in child.cfg
- fix staging so it works, and we can test this...

roles/copr/backend/files/provision/files/mock/templates/fedora-rawhide.tpl

@@ -0,0 +1,98 @@
+config_opts['root'] = 'fedora-rawhide-{{ target_arch }}'
+# config_opts['module_enable'] = ['list', 'of', 'modules']
+# config_opts['module_install'] = ['module1/profile', 'module2/profile']
+config_opts['chroot_setup_cmd'] = 'install @buildsys-build'
+config_opts['dist'] = 'rawhide'  # only useful for --resultdir variable subst
+config_opts['extra_chroot_dirs'] = [ '/run/lock', ]
+config_opts['releasever'] = '33'
+
+config_opts['package_manager'] = 'dnf'
+
+config_opts['bootstrap_image'] = 'fedora:rawhide'
+
+
+config_opts['yum.conf'] = """
+[main]
+keepcache=1
+debuglevel=2
+reposdir=/dev/null
+logfile=/var/log/yum.log
+retries=20
+obsoletes=1
+gpgcheck=0
+assumeyes=1
+syslog_ident=mock
+syslog_device=
+install_weak_deps=0
+metadata_expire=0
+best=1
+module_platform_id=platform:f33
+protected_packages=
+
+# repos
+
+[local]
+name=local
+baseurl=https://kojipkgs.fedoraproject.org/repos/rawhide/latest/$basearch/
+cost=2000
+enabled=0
+skip_if_unavailable=False
+
+[local-source]
+name=local-source
+baseurl=https://kojipkgs.fedoraproject.org/repos/rawhide/latest/src/
+cost=2000
+enabled=0
+skip_if_unavailable=False
+
+[fedora]
+name=fedora
+metalink=https://mirrors.fedoraproject.org/metalink?repo=rawhide&arch=$basearch
+gpgkey=file:///usr/share/distribution-gpg-keys/fedora/RPM-GPG-KEY-fedora-$releasever-primary file:///usr/share/distribution-gpg-keys/fedora/RPM-GPG-KEY-fedora-32-primary file:///usr/share/distribution-gpg-keys/fedora/RPM-GPG-KEY-fedora-33-primary
+gpgcheck=1
+skip_if_unavailable=False
+
+[fedora-debuginfo]
+name=Fedora Rawhide - aarch64 - Debug
+metalink=https://mirrors.fedoraproject.org/metalink?repo=rawhide-debug&arch=$basearch
+enabled=0
+gpgkey=file:///usr/share/distribution-gpg-keys/fedora/RPM-GPG-KEY-fedora-$releasever-primary file:///usr/share/distribution-gpg-keys/fedora/RPM-GPG-KEY-fedora-32-primary file:///usr/share/distribution-gpg-keys/fedora/RPM-GPG-KEY-fedora-33-primary
+gpgcheck=1
+skip_if_unavailable=False
+
+[fedora-source]
+name=fedora-source
+metalink=https://mirrors.fedoraproject.org/metalink?repo=rawhide-source&arch=$basearch
+gpgkey=file:///usr/share/distribution-gpg-keys/fedora/RPM-GPG-KEY-fedora-$releasever-primary file:///usr/share/distribution-gpg-keys/fedora/RPM-GPG-KEY-fedora-32-primary file:///usr/share/distribution-gpg-keys/fedora/RPM-GPG-KEY-fedora-33-primary
+gpgcheck=1
+enabled=0
+skip_if_unavailable=False
+
+# modular
+
+[rawhide-modular]
+name=Fedora - Modular Rawhide - Developmental packages for the next Fedora release
+metalink=https://mirrors.fedoraproject.org/metalink?repo=rawhide-modular&arch=$basearch
+# if you want to enable it, you should set best=0
+# see https://bugzilla.redhat.com/show_bug.cgi?id=1673851
+enabled=0
+gpgcheck=1
+gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-$releasever-$basearch file:///usr/share/distribution-gpg-keys/fedora/RPM-GPG-KEY-fedora-32-primary file:///usr/share/distribution-gpg-keys/fedora/RPM-GPG-KEY-fedora-33-primary
+skip_if_unavailable=False
+
+[rawhide-modular-debuginfo]
+name=Fedora - Modular Rawhide - Debug
+metalink=https://mirrors.fedoraproject.org/metalink?repo=rawhide-modular-debug&arch=$basearch
+enabled=0
+gpgcheck=1
+gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-$releasever-$basearch file:///usr/share/distribution-gpg-keys/fedora/RPM-GPG-KEY-fedora-32-primary file:///usr/share/distribution-gpg-keys/fedora/RPM-GPG-KEY-fedora-33-primary
+skip_if_unavailable=False
+
+[rawhide-modular-source]
+name=Fedora - Modular Rawhide - Source
+metalink=https://mirrors.fedoraproject.org/metalink?repo=rawhide-modular-source&arch=$basearch
+enabled=0
+gpgcheck=1
+gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-$releasever-$basearch file:///usr/share/distribution-gpg-keys/fedora/RPM-GPG-KEY-fedora-32-primary file:///usr/share/distribution-gpg-keys/fedora/RPM-GPG-KEY-fedora-33-primary
+skip_if_unavailable=False
+"""